Celestial hemisphere:  Southern  ·  Constellation: Carina (Car)  ·  Contains:  Carina Nebula  ·  IC 2599  ·  NGC 3372  ·  NGC 3496  ·  Part of the constellation Carina (Car)  ·  The star p Car  ·  The star r Car  ·  The star s Car  ·  The star t1 Car  ·  The star u Car  ·  The star w Car  ·  eta Car Nebula
Carina Nebula in Living Color, BQ_Octantis
Carina Nebula in Living Color
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Carina Nebula in Living Color

Revision title: Planckian Color Process

Carina Nebula in Living Color, BQ_Octantis
Carina Nebula in Living Color
Powered byPixInsight

Carina Nebula in Living Color

Revision title: Planckian Color Process

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Description

I've been doing a deep dive into how my DSLR produces color. I've been dependent on terrestrial camera RAW processors (Adobe Camera Raw, RawTherapee) to give me my color. But I've learned how to pull this color directly from the raw data in Siril. And the contrasts I got in this Carina were quite striking.

Eta Carina Nebula, 2020-01-27
Canon 200mm f/2.8L II @ ∅52mm
Canon 600D/T3i @ ISO800
149×30sec + 40×darks + 1×flat
Calibrated & demosaiced in Siril 1.0.5
Aligned & stacked in Siril
Processed in Siril, RT 5.8.0 & PS CS5
Outback Northern Territory
Tropic of Capricorn, Red Centre, Oz

Comments

Revisions

  • Carina Nebula in Living Color, BQ_Octantis
    Original
  • Final
    Carina Nebula in Living Color, BQ_Octantis
    B

B

Title: Planckian Color Process

Description: I further learned how to do color matching via a CCM to adapt from camera raw primaries to any color space. This is D57.8 sRGB matched to star Planckian chromaticities derived from their respective B-V color indices.

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Sky plot

Sky plot

Histogram

Carina Nebula in Living Color, BQ_Octantis